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Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DST_NOCOUNT in dst_entry::flags tracks whether the entry counts
toward route cache size (net->ipv6.sysctl.ip6_rt_max_size).
If the flag is NOT set, dst_ops::pcpuc_entries counter is incremented
in dist_init() and decremented in dst_destroy().
This flag is tied to allocation/deallocation of dst_entry and
should not be copied from another dst/route. Otherwise it can happen
that dst_ops::pcpuc_entries counter grows until no new routes can
be allocated because the counter reached ip6_rt_max_size due to
DST_NOCOUNT not set and thus no counter decrements on gc-ed routes.
Fixes: 3b6761d18bc1 ("net/ipv6: Move dst flags to booleans in fib entries")
Cc: David Ahern <dsahern@gmail.com>
Acked-by: Wei Wang <weiwan@google.com>
Signed-off-by: Peter Oskolkov <posk@google.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove duplicated include.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit 40413955ee26 ("Cipso: cipso_v4_optptr enter infinite loop") fixed
a possible infinite loop in the IP option parsing of CIPSO. The fix
assumes that ip_options_compile filtered out all zero length options and
that no other one-byte options beside IPOPT_END and IPOPT_NOOP exist.
While this assumption currently holds true, add explicit checks for zero
length and invalid length options to be safe for the future. Even though
ip_options_compile should have validated the options, the introduction of
new one-byte options can still confuse this code without the additional
checks.
Signed-off-by: Stefan Nuernberger <snu@amazon.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: Simon Veith <sveith@amazon.de>
Cc: stable@vger.kernel.org
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Recent firmware revisions have added the ability to force
these modems to USB2 mode, hiding their SuperSpeed
capabilities from the host. The driver has been using the
SuperSpeed capability, as shown by the bcdUSB field of the
device descriptor, to detect the need to enable the DTR
quirk. This method fails when the modems are forced to
USB2 mode by the modem firmware.
Fix by unconditionally enabling the DTR quirk for the
affected device IDs.
Reported-by: Fred Veldini <fred.veldini@gmail.com>
Reported-by: Deshu Wen <dwen@sierrawireless.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Reported-by: Fred Veldini <fred.veldini@gmail.com>
Reported-by: Deshu Wen <dwen@sierrawireless.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The driver may sleep with holding a spinlock.
The function call paths (from bottom to top) in Linux-4.17 are:
[FUNC] usleep_range
drivers/net/ethernet/socionext/sni_ave.c, 892:
usleep_range in ave_rxfifo_reset
drivers/net/ethernet/socionext/sni_ave.c, 932:
ave_rxfifo_reset in ave_irq_handler
[FUNC] usleep_range
drivers/net/ethernet/socionext/sni_ave.c, 888:
usleep_range in ave_rxfifo_reset
drivers/net/ethernet/socionext/sni_ave.c, 932:
ave_rxfifo_reset in ave_irq_handler
To fix these bugs, usleep_range() is replaced with udelay().
These bugs are found by my static analysis tool DSAC.
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It is impossible for frontpkt to be null at the point of the null
check because it has been assigned from rearpkt and there is no
way rearpkt can be null at the point of the assignment because
of the sanity checking and exit paths taken previously. Remove
the redundant null check.
Detected by CoverityScan, CID#114434 ("Logically dead code")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit d31fd43c0f9a ("clk: x86: Do not gate clocks enabled by the
firmware"), which added the code to mark clocks as CLK_IS_CRITICAL, causes
all unclaimed PMC clocks on Cherry Trail devices to be on all the time,
resulting on the device not being able to reach S0i3 when suspended.
The reason for this commit is that on some Bay Trail / Cherry Trail devices
the r8169 ethernet controller uses pmc_plt_clk_4. Now that the clk-pmc-atom
driver exports an "ether_clk" alias for pmc_plt_clk_4 and the r8169 driver
has been modified to get and enable this clock (if present) the marking of
the clocks as CLK_IS_CRITICAL is no longer necessary.
This commit removes the CLK_IS_CRITICAL marking, fixing Cherry Trail
devices not being able to reach S0i3 greatly decreasing their battery
drain when suspended.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861
Cc: Johannes Stezenbach <js@sig21.net>
Cc: Carlo Caione <carlo@endlessm.com>
Reported-by: Johannes Stezenbach <js@sig21.net>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On some boards a platform clock is used as clock for the r8169 chip,
this commit adds support for getting and enabling this clock (assuming
it has an "ether_clk" alias set on it).
This is related to commit d31fd43c0f9a ("clk: x86: Do not gate clocks
enabled by the firmware") which is a previous attempt to fix this for some
x86 boards, but this causes all Cherry Trail SoC using boards to not reach
there lowest power states when suspending.
This commit (together with an atom-pmc-clk driver commit adding the alias)
fixes things properly by making the r8169 get the clock and enable it when
it needs it.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861
Cc: Johannes Stezenbach <js@sig21.net>
Cc: Carlo Caione <carlo@endlessm.com>
Reported-by: Johannes Stezenbach <js@sig21.net>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Commit d31fd43c0f9a ("clk: x86: Do not gate clocks enabled by the
firmware") causes all unclaimed PMC clocks on Cherry Trail devices to be on
all the time, resulting on the device not being able to reach S0i2 or S0i3
when suspended.
The reason for this commit is that on some Bay Trail / Cherry Trail devices
the ethernet controller uses pmc_plt_clk_4. This commit adds an "ether_clk"
alias, so that the relevant ethernet drivers can try to (optionally) use
this, without needing X86 specific code / hacks, thus fixing ethernet on
these devices without breaking S0i3 support.
This commit uses clkdev_hw_create() to create the alias, mirroring the code
for the already existing "mclk" alias for pmc_plt_clk_3.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=193891#c102
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=196861
Cc: Johannes Stezenbach <js@sig21.net>
Cc: Carlo Caione <carlo@endlessm.com>
Reported-by: Johannes Stezenbach <js@sig21.net>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The Intel SoC was prevented from entering lower idle state because
of RTL8106E's ASPM was not enabled.
So enable ASPM on RTL8106E (chip version 39).
Now the Intel SoC can enter lower idle state, power consumption and
temperature are much lower.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There's a small delay after setting ASPM in vendor drivers, r8101 and
r8168.
In addition, those drivers enable ASPM before ClkReq, also change that
to align with vendor driver.
I haven't seen anything bad becasue of this, but I think it's better to
keep in sync with vendor driver.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This reverts commit 072222b488bc55cce92ff246bdc10115fd57d3ab.
I just read that this causes regressions.
Signed-off-by: David S. Miller <davem@davemloft.net>
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The current code assumes kcm users know they need to look for the
strparser offset within their bpf program, which is not documented
anywhere and examples laying around do not do.
The actual recv function does handle the offset well, so we can create a
temporary clone of the skb and pull that one up as required for parsing.
The pull itself has a cost if we are pulling beyond the head data,
measured to 2-3% latency in a noisy VM with a local client stressing
that path. The clone's impact seemed too small to measure.
This bug can be exhibited easily by implementing a "trivial" kcm parser
taking the first bytes as size, and on the client sending at least two
such packets in a single write().
Note that bpf sockmap has the same problem, both for parse and for recv,
so it would pulling twice or a real pull within the strparser logic if
anyone cares about that.
Signed-off-by: Dominique Martinet <asmadeus@codewreck.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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qeth_get_ipacmd_buffer() obtains its buffers for building IPA cmds from
__qeth_get_buffer(), where they are fully cleared. So get rid of all the
additional zero-ing in various other places.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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For quite a lot of code paths it's obvious that they will never run in
IRQ context. So replace their spin_lock_irqsave() calls with
spin_lock_irq().
While at it, get rid of the redundant card pointer in struct qeth_reply
that was used by qeth_send_control_data() to access the card's lock.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Assuming this was just a typo, as returning an actual negative value
from a cmd callback would make no sense either.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Calling napi_schedule() from process context does not ensure that the
NET_RX softirq is run in a timely fashion. So trigger it manually.
This is no big issue with current code. A call to ndo_open() is usually
followed by a ndo_set_rx_mode() call, and for qeth this contains a
spin_unlock_bh(). Except for OSN, where qeth_l2_set_rx_mode() bails out
early.
Nevertheless it's best to not depend on this behaviour, and just fix
the issue at its source like all other drivers do. For instance see
commit 83a0c6e58901 ("i40e: Invoke softirqs after napi_reschedule").
Fixes: a1c3ed4c9ca0 ("qeth: NAPI support for l2 and l3 discipline")
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When setting up, qeth installs its IRQ handler on the ccw devices. But
the IRQ handler is not cleared on removal - so even after qeth yields
control of the ccw devices, spurious interrupts would still be presented
to us.
Make (de-)installation of the IRQ handler part of the ccw channel
setup/removal helpers, and while at it also add the appropriate locking.
Shift around qeth_setup_channel() to avoid a forward declaration for
qeth_irq().
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Restructure the OSN xmit path to handle misaligned HW headers properly,
without shifting the packet data around.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Switch TSO over to the faster transmit path, and remove all the unused
old TSO code.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add all the necessary TSO plumbing to the copy-less transmit path.
This includes calculating the right length of required protocol headers,
and always building a separate buffer element for the TSO headers.
A follow-up patch will then switch TSO traffic over to this path.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When qeth_add_hw_header() falls back to the header cache, ensure that
the requested length doesn't exceed the object size.
For current usage this is a no-brainer, but TSO transmission will
introduce protocol headers of varying length.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When qeth_add_hw_header() falls back to the HW header cache, it also
copies over the necessary protocol headers. Thus any manipulation to
the protocol headers needs to happen before adding the HW header.
For current usage this doesn't matter, but it becomes relevant when
moving TSO transmission over to the faster code path.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Combined L3+L4 csum offload is only required for some L3 HW. So for
L2 devices, don't offload the IP header csum calculation.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Reference-ID: JUP 394553
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert the last remaining user of qeth_get_elements_no() to
qeth_count_elements(), so this helper can be removed.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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qeth_l3_xmit() is now only used for TSOv4 traffic, shrink it down.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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L3 OSAs can only offload IPv4 traffic, use the common L2 transmit path
for all other traffic.
In particular there's no support for TX VLAN offload, so any such packet
needs to be manually de-accelerated via ndo_features_check().
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We need the exact same transmit path for non-offload-eligible traffic on
L3 OSAs. So make it accessible from both sub-drivers.
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix the following compile warning:
drivers/net/ethernet/microchip/lan743x_main.c:2964:12: warning: lan743x_pm_suspend defined but not used [-Wunused-function]
static int lan743x_pm_suspend(struct device *dev)
drivers/net/ethernet/microchip/lan743x_main.c:2987:12: warning: lan743x_pm_resume defined but not used [-Wunused-function]
static int lan743x_pm_resume(struct device *dev)
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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1. Add functions for get_fecparam and set_fecparam.
2. Modify lio_get_link_ksettings to display FEC setting.
Signed-off-by: Weilin Chang <weilin.chang@cavium.com>
Acked-by: Derek Chickles <derek.chickles@cavium.com>
Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_node_put has taken the null pointer check into account. So it is
safe to remove the duplicated check before of_node_put.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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put_device has taken the null pinter check into account. So it is
safe to remove the duplicated check before put_device.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_node_put has taken the null pointer check into account. So it is
safe to remove the duplicated check before of_node_put.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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of_node_put has taken the null pointer check into account. So it is
safe to remove the duplicated check before of_node_put.
Signed-off-by: zhong jiang <zhongjiang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The function rds_inc_init is in recv process. To use memset can optimize
the function rds_inc_init.
The test result:
Before:
1) + 24.950 us | rds_inc_init [rds]();
After:
1) + 10.990 us | rds_inc_init [rds]();
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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A number of tls selftests rely upon recv() to return an exact number of
data bytes. When tls record crypto is done using an async accelerator,
it is possible that recv() returns lesser than expected number bytes.
This leads to failure of many test cases. To fix it, MSG_WAITALL has
been used in flags passed to recv() syscall.
Signed-off-by: Vakul Garg <vakul.garg@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes skb_shared area, which will be corrupted
upon reception of 4K jumbo packets.
Originally build_skb usage purpose was to reuse page for skb to eliminate
needs of extra fragments. But that logic does not take into account that
skb_shared_info should be reserved at the end of skb data area.
In case packet data consumes all the page (4K), skb_shinfo location
overflows the page. As a consequence, __build_skb zeroed shinfo data above
the allocated page, corrupting next page.
The issue is rarely seen in real life because jumbo are normally larger
than 4K and that causes another code path to trigger.
But it 100% reproducible with simple scapy packet, like:
sendp(IP(dst="192.168.100.3") / TCP(dport=443) \
/ Raw(RandString(size=(4096-40))), iface="enp1s0")
Fixes: 018423e90bee ("net: ethernet: aquantia: Add ring support code")
Reported-by: Friedemann Gerold <f.gerold@b-c-s.de>
Reported-by: Michael Rauch <michael@rauch.be>
Signed-off-by: Friedemann Gerold <f.gerold@b-c-s.de>
Tested-by: Nikita Danilov <nikita.danilov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The gswip tag was missing in the dsa_tag_protocol_to_str() function, add it.
Fixes: 7969119293f5 ("net: dsa: Add Lantiq / Intel GSWIP tag support")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use one code block when returning because the interface type is
unsupported and also check if some unsupported port gets configured.
In addition fix a double the and use dsa_is_cpu_port() instated of
manually getting the CPU port.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The switch and the MAC are in one IP core and they use the same clock
signal from the clock generation unit.
Currently the clock architecture in the lantiq SoC code does not allow
to easily share the same clocks, this has to be fixed by switching to
the common clock framework.
As a workaround the clock of the switch and MAC should be activated when
the MAC gets probed and only disabled when the MAC gets removed. This
way it is ensured that the clock is always enabled when the switch or
MAC is used. The switch can not be used without the MAC.
This fixes a data bus error when rebooting the system and deactivating
the switch and mac and later accessing some registers in the cleanup
while the clocks are disabled.
Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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* Use one compatible line per line in the documentation
* Remove SoC revision depended compatible lines, we can detect that in
the driver
* Use lower case letters in hex addresses
* Fix the size of the address ranges in the example, this now matches
the sizes used by the SoC. The old ones will also work, this just adds
some empty address space.
* Change the reg size of the gphy-fw node
Fixes: 86ce2bc73c7a ("dt-bindings: net: dsa: Add lantiq, xrx200-gswip DT bindings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use lower case letters in the addresses of the device tree binding.
In addition replace eth with ethernet and fix the size of the reg
element in the example. The additional range does not contain any
registers but is used for the IP block on the this SoC.
Fixes: 839790e88a3c ("dt-bindings: net: Add lantiq, xrx200-net DT bindings")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: devicetree@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fixes the following sparse warning:
drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c:322:5: warning:
symbol 'hns_gmac_wait_fifo_clean' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The return value from of_reset_control_array_get_exclusive() is not
checked correctly. The test is done against a wrong variable. This
patch fix it.
Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().
Fixes: 14fceff4771e ("net: dsa: Add Lantiq / Intel DSA driver for vrx200")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix a cut/paste error and a typo which results in ATU miss violations
not being reported.
Fixes: 0977644c5005 ("net: dsa: mv88e6xxx: Decode ATU problem interrupt")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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YueHaibing
Peter Oskolkov
Stefan Nuernberger
Bjørn Mork
Jia-Ju Bai
Colin Ian King
Hans de Goede
Kai-Heng Feng
David S. Miller
Dominique Martinet
Julian Wiedmann
zhong jiang
Weilin Chang
Zhu Yanjun
Vakul Garg
Friedemann Gerold
Hauke Mehrtens
Wei Yongjun
Andrew Lunn